摘要
首先对移动通信的发展、第三代移动通信系统的主要目标以及 IMT- 2 0 0 0的无线传输技术方案做了简要叙述 ,然后讨论了第三代移动通信中的关键之一智能天线技术的基本概念。着重描述了时空信道模型和时空信道估计 。
The evolution of mobile communications, the main goals of the third generation (3G) mobile communications system and the proposals of IMT 2000 radio transmission technology (RTT) are reviewed. The basic idea of smart antenna, one of key techniques in 3G, is described in detail. We focus our much attention on the space time channel model and its estimation. Furthermore, the multi user downlink selective transmission is briefly presented.
出处
《数据采集与处理》
CSCD
2001年第4期451-458,共8页
Journal of Data Acquisition and Processing
基金
国家自然科学基金 (编号 :6 9872 0 2 9)
国家 86 3计划 (编号 :86 3- 317- 0 3- 0 1- 0 5 - 0 0 )资助项目
